The Action has been initiated by a network of researchers from 13 COST countries and encourages additional individual researchers and COST countries to join. The coordination of the Action is overseen by a Management Committee (MC).

The task of the MC is to review the direction and progress of the work plan including the dissemination of the outputs elaborated. The MC will also initiate and maintain an ongoing exchange of information with relevant key international bodies.

There will be 4 Working Groups (WG), three thematic WG and one for disemmination and communication. Each WG has designated WG chair and a Co-chair (an Early Carreer Investigator).

Together with the Chair and the Vice-Chair of the Action, the WG Chairs with their substitutes will form a Core Group (CG) as the managing board of the Action. Also the STSM Coordinator will participate in the core group.